Cosmetic brush



FIG. 1 is an upper perspective view of a cosmetic brush showing my new design.

FIG. 2 is a top view of a cosmetic brush showing my new design.

FIG. 3 is a bottom view of a cosmetic brush showing my new design.

FIG. 4 is a first side view of a cosmetic brush showing my new design.

FIG. 5 is a second side view of a cosmetic brush showing my new design.

FIG. 6 is an enlarged rear view of a cosmetic brush showing my new design.

FIG. 7 is an enlarged frontal view of a cosmetic brush showing my new design; and,

FIG. 8 is a magnified view of the head portion of the cosmetic brush shown in FIG. 3.

The broken lines showing bristles illustrate portions of the cosmetic brush that form no part of the claimed design. 

CLAIM The ornamental design for a cosmetic brush, as shown and described. 